president obama returns to washington today cutting short his hawaiian holiday. he's ready to address national security after the christmas day terror plot. >>> the tallest building in the world opens today in dubai. nobody has said exactly how high this tower stands but there are reports it's 2,700 feet tall. that's bigger than any other building in the world. >>> and nfl league officials, congressional investigators and safety experts meet today in detroit to discuss football helmets. players want better protection from head injuries. >>> finally this half hour, it's every weekend warrior's dream. to give up your job and do the fun stuff full-time. >> losing your job would seem to push that dream even farther away. for one amateur bowler chris bury met it was a very lucky strike. >> reporter: tom smallwood, a man with a mean left hook, dreamed of making his living on the lanes. but like so many in michigan, he earned his pay on an assembly line. until he was laid off from this gm factory two days before christmas in 2008. >> i have a 2-year-old and a house and